How to use "sine hdl optimized" block?

16 次查看（过去 30 天）
Himadri Debnath
Himadri Debnath 2021-4-11
回答： Ishan Ghosekar 2022-8-26
I need digital sine wave for my verilog project. For that I need fixed point sinusoidal signal. I am using MATLAB hdl coder. I want to apply "sine hdl optimized" block to get the lookup table data. But I don't know what to use as a input.
Basically I need to generate a 100 Hz sine wave sampled at 44.1 kHz. So what should I use as the input 'u' and output?
  2 个评论
Bharath Venkataraman
Bharath Venkataraman 2021-4-12
You may want to consider using the NCO HDL Optimized block. If you compute the phase offset based on your output clock, you can use the sine output to get the desired signal.
Bharath Venkataraman
Bharath Venkataraman 2021-4-13
I had answered a similar question on generating a sine wave here. There is a model attached in that response that may be useful.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Ishan Ghosekar
Ishan Ghosekar 2022-8-26
As I understand, you want to generate sine wave of 100Hz sampled at 44.1 KHz using Sine HDL Optimized block and you would like to know what inputs can be provided to the block.
I have attached the model that can be used to generate desired sine wave.
In the attached model, I have used HDL Counter and Gain block. The HDL Counter block runs from 1 to sampling frequency (fs), 44.1KHz, at a sample time of 1/fs. Specify the gain value of Gain block as sinusoidal wave frequency (f)/fs. The output of gain block is given as input to Sine HDL Optimized block.
The generated output of the block is shown in figure below:

类别

在 Help Center 和 File Exchange 中查找有关 Speed Optimization 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by